US11718145B2 - HVAC system having air-conditioning channels for target seats - Google Patents
HVAC system having air-conditioning channels for target seats Download PDFInfo
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- US11718145B2 US11718145B2 US16/745,036 US202016745036A US11718145B2 US 11718145 B2 US11718145 B2 US 11718145B2 US 202016745036 A US202016745036 A US 202016745036A US 11718145 B2 US11718145 B2 US 11718145B2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H1/00028—Constructional lay-out of the devices in the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00285—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for vehicle seats
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00664—Construction or arrangement of damper doors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00742—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models by detection of the vehicle occupants' presence; by detection of conditions relating to the body of occupants, e.g. using radiant heat detectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00835—Damper doors, e.g. position control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00185—Distribution of conditionned air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/003—Component temperature regulation using an air flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H2001/00961—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices comprising means for defrosting outside heat exchangers
Definitions
- HVAC heating, ventilation, and air conditioning
- an electric vehicle is driven by a motor that outputs power by being supplied with electricity from a battery. Accordingly, an electric vehicle has advantages of not discharging carbon dioxide, generating a little noise, and having a higher energy efficiency of a motor than the energy efficiency of an engine, so it has been spotlighted as an eco-friendly vehicle.
- the core technology for achieving such an electric vehicle is the technology related to a battery module, and recently, studies for reducing the weight and size of a battery and decreasing the charge time have been actively conducted.
- a battery module can maintain optimal performance and a long lifespan when it is used in an optimal temperature environment.
- it is substantially difficult to use a battery module in an optimal temperature environment due to heat that is generated in operation and a change of external temperature.
- an electric vehicle has no waste heat source that is generated by combustion in a specific engine such as an internal combustion engine, so the interior of the electric vehicle is heated with an electric heating device in wintertime. Further, warming-up is desired to improve the charge/discharge performance of a battery in an intense cold period, so a separate cooling water heating-type electric heater is used. That is, a technology of operating a heating/cooling system for controlling the temperature of a battery module separately from a heating/cooling system for interior air-conditioning of a vehicle in order to maintain an optimal temperature environment for the battery module has been adopted.
- Interior air-conditioning is performed also in an electric vehicle to improve the interior environment, but we have discovered that when the entire interior is cooled or heated without separating the driver seat and passenger seats in interior air-conditioning, the air-conditioning efficiency decreases, and accordingly, electrical energy is wasted.
- the present disclosure provides an HVAC system of a vehicle that increases air-conditioning efficiency by reducing a waste of cooling/heating energy by individually performing air-conditioning for seats, depending on whether there are passengers sitting in the seats.
- an HVAC system of a vehicle includes: an air-conditioning unit including a blower, a heater unit, and a cooling unit, and a temperature adjustment door making conditioned-air pass through the heater unit or the cooling unit; and an air-conditioning channel unit including a plurality of discharge channels, through which conditioned-air is discharged from the air-conditioning unit to specific seats or interior air is returned from the specific seats, and doors disposed in the discharge channels so that the conditioned-air is discharged to specific seats and then returned from the specific seats to re-circulate.
- the air-conditioning channel unit may include: a first air-conditioning channel unit having a plurality of discharge channels for discharging conditioned-air or returning interior air for a first seat and having doors respectively disposed in the discharge channels; and a second air-conditioning channel unit having a plurality of discharge channels for discharging conditioned-air or returning interior air for a second seat and having doors respectively disposed in the discharge channels.
- the discharge channels of the first air-conditioning channel unit may include: a first upper vent channel being open toward an upper portion of the first seat, a first upper return channel being open toward the blower from the first upper vent channel, a first lower vent channel being open toward a lower portion of the first seat, and a first lower return channel being open toward the blower from the first lower vent channel; and the doors of the first air-conditioning channel unit may include a first upper vent door selectively opening and closing the first upper vent channel or first upper return channel, and a first lower vent door selectively opening and closing the first lower vent channel or the first lower return channel.
- the discharge channels of the second air-conditioning channel unit may include a second upper vent channel being open toward an upper portion of the second seat, a second upper return channel being open toward the blower from the second upper vent channel, a second lower vent channel being open toward a lower portion of the second seat, and a second lower return channel being open toward the blower from the second lower vent channel; and the doors of the second air-conditioning channel unit may include a second upper vent door selectively opening and closing the second upper vent channel or second upper return channel, and a second lower vent door selectively opening and closing the second lower vent channel or the second lower return channel.
- first upper vent channel and the second upper vent channel may be configured to discharge cooling air that has passed through the cooling unit, and the first lower vent channel and the second lower vent channel are configured to discharge heating air that has passed through the heater unit.
- the air-conditioning unit may include: an internal/external air door; a first return door determining whether to return the interior air to the blower from the first air-conditioning channel unit; a second return door determining whether to return the interior air to the blower from the second air-conditioning channel unit; a defrost channel; a defrost return channel being open toward the blower from the defrost channel; and a defrost door selectively opening and closing the defrost channel and the defrost return channel.
- the interior air returned through the first upper return channel, the first lower return channel, the second upper return channel, the second lower return channel, and the defrost return channel may be re-circulated to the blower through extension ducts being open toward the blower.
- the HVAC system may further include a controller collecting interior temperature information and passenger-sitting information and controlling the temperature adjustment door, the doors of the first air-conditioning channel unit, and the doors of the second air-conditioning channel unit in accordance with operation modes according to the interior temperature and the passenger-sitting information.
- the controller may control the temperature adjustment door such that conditioned-air passes through the cooling unit, and may control the first upper vent door to open the first upper vent channel, the first lower vent door to open the first lower return channel, the first return door to open, and the other doors to close.
- the controller may control the temperature adjustment door such that conditioned-air passes through the cooling unit, and may control the first upper vent door to open the first upper vent channel, the first lower vent door to open the first lower return channel, the second upper vent door to open the second upper return channel, the second lower vent door to open the second lower return channel, and the first return door and the second return door to open.
- the controller may control the temperature adjustment door such that conditioned-air passes through the cooling unit, and may control the first upper vent door to open the first upper vent channel, the first lower vent door to open the first lower return channel, the second upper vent door to open the second upper vent channel, the second lower vent door to open the second lower return channel, and the first return door and the second return door to open.
- the controller may control the defrost door to close the defrost channel and open the defrost return channel.
- the controller may control the temperature adjustment door such that conditioned-air passes through the heater unit, and may control the internal/external air door to open, the first upper vent door to open the first upper return channel, the first lower vent door to open the first lower vent channel, and the first return door to open.
- the controller may control the temperature adjustment door such that conditioned-air passes through the heater unit, and may control the internal/external air door to open, the first upper vent door to open the first upper return channel, the first lower vent door to open the first lower vent channel, the second upper vent door to open the second upper return channel, the second lower vent door to open the second lower return channel, and the first return door and the second return door to open.
- the controller may control temperature adjustment door such that conditioned-air passes through the heater unit, and may control the first upper vent door to open the first upper return channel, the first lower vent door to open the first lower vent channel, the second upper vent door to open the second upper return channel, the second lower vent door to open the second lower vent channel, and the first return door and the second return door to open.
- the controller may control the defrost door to open the defrost channel and close the defrost return channel.
- the controller may control the temperature adjustment door such that conditioned-air passes through the heater unit, and may control the internal/external air door to open, the first upper vent door to open the first upper vent channel, the first lower vent door to open the first lower vent channel, and the first return door to open.
- the controller may control the temperature adjustment door such that conditioned-air passes through the cooling unit and heater unit, and may control the internal/external air door to open, the first upper vent door to open the first upper vent channel, the first lower vent door to open the first lower vent channel, the second upper vent door to open the second upper vent channel, the second lower vent door to open the second lower vent channel, and the first return door and the second return door to open.
- the controller controls the defrost door to open defrost return channel and close the defrost channel.
- the HVAC system of a vehicle having the structure described above increases air-conditioning efficiency by preventing a waste of cooling/heating energy by individually performing air-conditioning for seats, depending on whether there are passengers sitting in the seats and then increases the range of an electric vehicle due to the increase in air-conditioning efficiency.
- FIG. 1 is an air-conditioning circuit diagram of an HVAC system of a vehicle according to one form of the present disclosure
- FIG. 2 is a view showing seat-classified air-conditioning by the HVAC system of a vehicle shown in FIG. 1 ;
- FIG. 3 is an air-conditioning circuit diagram of an HVAC system of a vehicle according to another form of the present disclosure
- FIGS. 4 to 19 are views respectively illustrating the operation of various air-conditioning modes of the HVAC system of a vehicle shown in FIG. 1 ;
- FIG. 20 is a view showing the configuration of the HVAC system of a vehicle according to one form of the present disclosure.
- FIG. 1 is an air-conditioning circuit diagram of an HVAC system of a vehicle according to one form of the present disclosure
- FIG. 2 is a view showing seat-classified air-conditioning by the HVAC system of a vehicle shown in FIG. 1
- FIG. 3 is an air-conditioning circuit diagram of an HVAC system of a vehicle according to another form of the present disclosure
- FIGS. 4 to 19 are views illustrating the operation according to air-conditioning mode of the HVAC system of a vehicle shown in FIG. 1
- FIG. 20 is a view showing the configuration of the HVAC system of a vehicle according to one form of the present disclosure.
- an HVAC system of a vehicle includes: an air-conditioning unit 10 including a blower 11 , a heater unit 12 , and a cooling unit 13 , and a temperature adjustment door T making conditioned-air pass through the heater unit 12 or the cooling unit 13 ; and an air-conditioning channel unit including a plurality of discharge channels, through which conditioned-air is discharged from the air-conditioning unit 10 to specific seats or interior air is returned from the specific seats, and doors disposed in the discharge channels so that the conditioned-air is discharged to specific seats and then returned from the specific seats to re-circulate.
- an air-conditioning unit 10 including a blower 11 , a heater unit 12 , and a cooling unit 13 , and a temperature adjustment door T making conditioned-air pass through the heater unit 12 or the cooling unit 13 ; and an air-conditioning channel unit including a plurality of discharge channels, through which conditioned-air is discharged from the air-conditioning unit 10 to specific seats or interior air is returned from the specific seats, and doors disposed
- the air-conditioning unit 10 air is blown by the blower 11 and passes through the heater unit 12 or the cooling unit 13 , depending on the position of the temperature adjustment door T, whereby the temperature of the conditioned-air is adjusted.
- the conditioned-air with adjusted temperature is discharged through the discharge channels, thereby being provided to specific seats.
- the conditioned-air provided to a specific seat in the interior re-circulates to be returned through the discharge channel at the specific seat, so the conditioned-air circulates only in the areas that desire the conditioned-air, whereby a waste of cooling/heating energy is prevented and air-conditioning efficiency is increased.
- the range of an electric vehicle is increased.
- the air-conditioning channel unit includes: a first air-conditioning channel unit 20 that has a plurality of discharge channels for discharging conditioned-air or returning interior air for a first seat H 1 and has doors respectively disposed in the discharge channels; and a second air-conditioning channel unit 30 that has a plurality of discharge channels for discharging conditioned-air or returning interior air for a second seat H 2 and has doors respectively disposed in the discharge channels. Accordingly, conditioned-air for cooling/heating can be discharged to any one of the first seat H 1 or the second seat H 2 and then re-circulated to the first seat H 1 or the second seat H 2 .
- the HVAC system is configured to blow air-conditioning for cooling/heating to respective seats in the interior or to return and re-circulate interior air through the first air-conditioning channel unit 20 and the second air-conditioning channel unit 30 in the air-conditioning unit 10 .
- the first air-conditioning channel unit 20 and the second air-conditioning channel unit 30 are included in the air-conditioning unit 10 .
- Air blown by the blower 11 in the in the air-conditioning unit 10 passes through the heater unit 12 and the cooling unit 13 , and then the flow channels in the first air-conditioning channel unit 20 or the second air-conditioning channel unit 30 are switched, so conditioned-air is blown or interior air is returned for the first seat H 1 or the second seat H 2 .
- the heater unit 12 for adjusting the temperature of conditioned-air may be a PCT element or a heater coil and the cooing unit 13 may be an evaporator core, so heating air or cooling air can be produced using heat exchange by circulation of a coolant.
- the first air-conditioning channel unit 20 and the second air-conditioning channel unit 30 are configured to discharge conditioned-air for cooling/heating to the first seat H 1 or the second seat H 2 , or to return interior air. That is, a pluralities of discharge channels and doors are provide in each of the first air-conditioning channel unit 20 and the second air-conditioning channel unit 30 , so discharge of conditioned-air or return of interior air can be selectively performed, depending on the opening/closing positions of the doors.
- conditioned-air can be discharged to any one of the first seat H 1 or the second seat H 2 and then re-circulated to the first seat H 1 or the second seat H 2 , so the conditioned-air circulates through only any one of the seats, whereby preventing a waste of energy due to cooling/heating for an unnecessary area.
- the discharge channels of the first air-conditioning channel unit 20 may include: a first upper vent channel 21 being open toward the upper portion of the first seat H 1 , a first upper return channel 22 being open toward the blower 11 from the first upper vent channel 21 , a first lower vent channel 23 being open toward the lower portion of the first seat H 1 , and a first lower return channel 24 being open toward the blower 11 from the first lower vent channel 23 .
- the doors of the first air-conditioning channel unit 20 may include a first upper vent door 25 selectively opening/closing the first upper vent channel 21 or first upper return channel 22 , and a first lower vent door 26 selectively opening/closing the first lower vent channel 23 or the first lower return channel 24 .
- the discharge channels of the second air-conditioning channel unit 30 may include: a second upper vent channel 31 being open toward the upper portion of the second seat H 2 , a second upper return channel 32 being open toward the blower from the second upper vent channel 31 , a second lower vent channel 33 being open toward the lower portion of the second seat H 2 , and a second lower return channel 34 being open toward the blower 11 from the second lower vent channel 33 .
- the doors of the second air-conditioning channel unit 30 may include a second upper vent door 35 selectively opening/closing the second upper vent channel 31 or the second upper return channel 32 , and a second lower vent door 36 selectively opening/closing the second lower vent channel 33 or the second lower return channel 34 .
- the first air-conditioning channel unit 20 corresponds to the first seat H 1 and the first seat H 1 may be a driver seat
- the second air-conditioning channel unit 30 corresponds to the second seat H 2 and the second seat H 2 may be a passenger seat.
- the first upper vent channel 21 is open toward the first seat H 1 that is a driver seat from a dashboard
- the first lower vent channel 23 is open to the lower portion of the first seat H 1
- the second upper vent channel 31 is open toward the second seat H 2 that is a passenger seat from the dashboard
- the second lower vent channel 33 is open to the lower portion of the second seat H 2 .
- the first upper return channel 22 and the first lower return channel 24 respectively diverging from the first upper vent channel 21 and the first lower vent channel 23 and being open to the blower 11 , and conditioned-air is discharged to the interior or interior air is returned, depending on the opening/closing positions of the first upper vent door 25 and the first lower vent door 26 .
- the second upper return channel 32 and the second lower return channel 34 respectively diverging from the second upper vent channel 31 and the second lower vent channel and being open to the blower 11 , and conditioned-air is discharged to the interior or interior air is returned, depending on the opening/closing positions of the second upper vent door 35 and the second lower vent door 36 .
- the operation relationship of the first upper vent channel 21 , the first upper return channel 22 , and the first upper vent door 25 in this configuration is exemplarily described.
- the first upper vent door 25 When the first upper vent door 25 is positioned to open the first upper vent channel 21 and close the first upper return channel 22 with the blower 11 in operation, the conditioned-air blown by the blower 11 can be discharged to the first seat H 1 through the first upper vent channel 21 .
- the first upper vent door 25 is positioned to close the first upper vent channel 21 and open the first upper return channel 22 , the interior air is suctioned inside through the first upper return channel 22 and re-circulated in the air-conditioning unit 10 by operation of the blower 11 .
- This operation relationship is the same as the operation relationships of the second upper vent channel 31 , the second upper return channel 32 , and the second upper vent door 35 ; the first lower vent channel 23 , the first lower return channel 24 , and the first lower vent door 26 ; and the second lower vent channel 33 , the second lower return channel 34 , and the second lower vent door 36 . Accordingly, as can be seen from FIG. 2 , air can be discharged or returned through a first upper vent hole A 1 formed toward the upper portion of the driver seat and communicating with the first upper vent channel 21 in the dash board, air can be discharged or returned through a first lower vent hole A 2 formed toward the lower portion of the driver seat and communicating with the first lower vent channel 23 .
- air can be discharged or returned through a second upper vent hole A 3 formed toward the upper portion of the passenger seat and communicating with the second upper vent channel 31 in the dash board, and air can be discharged or returned through a second lower vent hole A 3 formed toward the lower portion of the passenger seat and communicating with the second lower vent channel 33 .
- the first upper vent channel 21 and the second upper vent channel 31 may be configured to discharge cooling air that has passed through the cooling unit 13
- the first lower vent channel 23 and the second lower vent channel 33 may be configured to discharge heating air that has passed through the heater unit 12 .
- ducts extending from the cooling unit 13 to the first upper vent channel 21 and the second upper vent channel 31 , respectively, and ducts extending from the heater unit 12 to the first lower vent channel 23 and the second lower vent channel 33 , respectively, may be separately formed in the air-conditioning unit 10 . Since the cooling air and the heating air are divided up and down in this way, it is possible to separately provide the cooling air and the heating air and it is also possible to smoothly circulate conditioned-air for the first seat H 1 or the second seat H 2 simultaneously with return of the interior air.
- the air-conditioning unit 10 may include: an internal/external air door 14 ; a first return door 15 that determines whether to return the interior air to the blower 11 from the first air-conditioning channel unit 20 ; a second return door 16 that determines whether to return the interior air to the blower 11 from the second air-conditioning channel unit 30 ; a defrost channel 17 ; a defrost return channel 18 being open toward the blower 11 from the defrost channel 17 ; and a defrost door 19 selectively opening/closing the defrost channel 17 and the defrost return channel 18 .
- the defrost channel 17 is connected to the windshield and the defrost return channel 18 diverges from the defrost channel 17 and is open toward the blower 11 .
- the defrost return channel can share a recirculation path with the first upper return channel 22 or the first lower vent channel 23 , so circulation of returned air can be performed by opening/closing of the first return door 15 . Since the defrost door 19 selectively opens/closes the defrost channel 17 and the defrost return channel 18 , as described above, the conditioned-air can be discharged to the windshield or the interior air can be returned, depending on the opening/closing positions of the defrost door 19 .
- the interior air returned through the first upper return channel 22 , the first lower return channel 24 , the second upper return channel 32 , the second lower return channel 34 , and the defrost return channel 18 can be re-circulated to the blower 11 through extension ducts D being open toward the blower 11 .
- a return space 10 b that communicates with the return channels may be provided in the air-conditioning unit 10 , but, as shown in FIG. 3 , the extension ducts D are provided for the return channels, respectively, whereby the returned conditioned-air can be smoothly re-circulated toward the blower 11 without interference with surrounding parts.
- the HVAC system may further include a controller 100 that collects interior temperature information and passenger-sitting information and controls the temperature adjustment door T, the doors of the first air-conditioning channel unit 20 , and the doors of the second air-conditioning channel unit 30 in accordance with operation modes according to the interior temperature and the passenger-sitting information.
- the controller 100 can collect interior temperature information through an interior temperature sensor and can collect the sitting information of passengers through pressure sensors disposed at the seats, etc. As can be seen from FIG. 20 , the controller 100 is configured to control opening/closing of various doors.
- the controller 100 can be implemented through a nonvolatile memory (not shown) configured to store data about algorithms for controlling operation of various components of a vehicle or about software commands for executing the algorithms, and a processor (not shown) configured to perform operation to be described below using the data stored in the memory.
- the memory and the processor may be individual chips. Alternatively, the memory and the processor may be integrated in a single chip.
- the processor may be implemented as one or more processors.
- Air circulation control based on information collected from various items of information by the controller 100 is as follows.
- the controller 100 controls the temperature adjustment door T such that conditioned-air passes through the cooling unit 13 , and can control the first upper vent door 25 to open the first upper vent channel 21 , the first lower vent door 26 to open the first lower return channel 24 , the first return door 15 to open, and the other doors to close.
- the controller 100 controls the temperature adjustment door T so that conditioned-air blown by the blower 11 passes through the cooling unit 13 .
- the controller 100 controls the first upper vent door 25 to open the first upper vent channel 21 and close the first upper return channel 22 , the first lower vent door 26 to close the first lower vent channel 23 and open the first lower return channel 24 , and the first return door 15 to open. Further, the controller 100 controls the second upper vent door 35 to close the second upper vent channel 31 , the second lower vent door 36 to close the second lower vent channel 33 , and the second return door 16 to close.
- cooling air is discharged toward the upper portion of the first seat H 1 (through the first upper vent hole A 1 ) and the interior air is returned from the lower portion of the first seat H 1 (through the first lower vent hole A 2 ), so the conditioned-air circulates only around the first seat H 1 .
- the controller 100 in the cooling mode, can control the defrost door 19 to close the defrost channel 17 and open the defrost return channel 18 .
- the defrost return channel 18 is opened and the interior air is returned through the defrost vent hole A 5 in the cooling mode, as described above, it is possible to increase the return rate of the conditioned-air and smoothly circulate the conditioned-air.
- cooling air is discharged toward only the upper portion of the first seat H 1 (through the first upper vent hole A 1 ), while it is returned simultaneously from the lower portion of the first seat H 1 (through the first lower vent hole A 2 ) and the defrost vent hole A 5 , so air can be returned as large amount as possible relative to discharge. Further, since a large amount of air is returned, the air that is discharged can be discharged more well without a loss of pressure and a passenger can feel circulation of conditioned air not only around a specific area, but also uniformly throughout the area from the head to the feet.
- the controller 100 can control the defrost door 19 to open the defrost channel 17 and close the defrost return channel 18 . Accordingly, conditioned-air is discharged to the windshield through the defrost vent hole A 5 and the interior air is returned through all or some of the first lower vent hole A 2 , the second upper vent hole A 3 , and the second lower vent hole A 4 except for the first upper vent hole A 1 and the defrost vent hole A 5 , whereby the conditioned-air can circulate.
- the controller 100 controls the temperature adjustment door T such that the conditioned-air passes through the cooling unit 13 , and can control the first upper vent door 25 to open the first upper vent channel 21 , the first lower vent door 26 to open the first lower return channel 24 , the second upper vent door 35 to open the second upper return channel 32 , the second lower vent door 36 to open the second lower return channel 34 , and the first return door 15 and the second return door 16 to open.
- the condition that desires enhancement of return of the interior air may be the case when it is desired to quickly cool the interior or it is desired to secure air-conditioning efficiency for the first seat H 1 rather than the second seat H 2 .
- the controller 100 controls the temperature adjustment door T so that air-conditioning air blown by the blower 11 passes through the cooling unit 13 .
- the controller 100 controls the first upper vent door 25 to open the first upper vent channel 21 and close the first upper return channel 22 , controls the first lower vent door 26 to close the first lower vent channel 23 and open the first lower return channel 24 , and opens the first return door 15 . Further, the controller 100 controls the second upper vent door 35 to open the second upper return channel 32 and close the second upper return channel 32 and controls the second lower vent door 36 to open the second lower return channel 34 and close the second lower return channel 34 .
- cooling air is discharged toward the upper portion of the first seat H 1 (through the first upper vent hole A 1 ) and the interior air is returned from the lower portion of the first seat H 1 (through the first lower vent hole A 2 ), so the conditioned-air circulates only around the first seat H 1 . Further, the interior air is returned from the upper portion of the second seat H 2 (through the second upper vent hole A 3 ) and the lower portion of the second seat H 2 (through the second lower vent hole A 4 ).
- the controller 100 controls the temperature adjustment door T such that the conditioned-air passes through the cooling unit 13 , and can control the first upper vent door 25 to open the first upper vent channel 21 , the first lower vent door 26 to open the first lower return channel 24 , the second upper vent door 35 to open the second upper vent channel 31 , the second lower vent door 36 to open the second lower return channel 34 , and the first return door 15 and the second return door 16 to open.
- the controller 100 controls the temperature adjustment door T so that air-conditioning air blown by the blower 11 passes through the cooling unit 13 .
- the controller 100 controls the first upper vent door 25 to open the first upper vent channel 21 and close the first upper return channel 22 , controls the first lower vent door 26 to close the first lower vent channel 23 and open the first lower return channel 24 , and opens the first return door 15 . Further, the controller 100 controls the second upper vent door 35 to open the second upper vent channel 31 and close the second upper return channel 32 , the second lower vent door 36 to close the second lower vent channel 33 and open the second lower return channel 34 , and the second return door 16 to open.
- cooling air is discharged toward the upper portion of the first seat H 1 (through the first upper vent hole A 1 ) and toward the upper portion of the second seat H 2 (through the second upper vent hole A 3 ), while the interior air is returned from the lower portion of the first seat H 1 (through the first lower vent hole A 2 ) and from the lower portion of the second seat H 2 (through the second lower vent hole A 4 ). Accordingly, cooling is performed while the conditioned-air circulates around both of the first seat H 1 and the second seat H 2 .
- the cooling air discharged from the center portion of the dashboard is divided and circulated up and down in interior cooling, whereby cooling efficiency is improved.
- the controller 100 controls the temperature adjustment door T such that conditioned-air passes through the heater unit 12 , and can control the internal/external air door 14 to open, the first upper vent door 25 to open the first upper return channel 22 , the first lower vent door 26 to open the first lower vent channel 23 , and the first return door 15 to open.
- the controller 100 opens the internal/external air door 14 to introduce external air and controls the temperature adjustment door T so that the conditioned-air blown by the blower 11 passes through the heater unit 12 .
- the controller 100 controls the first upper vent door 25 to close the first upper vent channel 21 and open the first upper return channel 22 , the first lower vent door 26 to open the first lower vent channel 23 and close the first lower return channel 24 , and the first return door 15 to open. Further, the controller 100 controls the second upper vent door 35 to close the second upper vent channel 31 , the second lower vent door 36 to close the second lower vent channel 33 , and the second return door 16 to close.
- heating air is discharged toward the lower portion of the first seat H 1 (through the first lower vent hole A 2 ) and the interior air is returned from the upper portion of the first seat H 1 (through the first upper vent hole A 1 ).
- the controller 100 in the heating mode, controls the defrost door 19 to open the defrost channel 17 and close the defrost return channel 18 , whereby the circulation rate of the conditioned-air is improved. Further, since the internal/external air door 14 is opened, some of the heating air is discharged outside, thereby being able to supply fresh air to the driver.
- the controller 100 controls the temperature adjustment door T such that the conditioned-air passes through the heater unit 12 , opens the internal/external air door 14 , and can control the first upper vent door 25 to open the first upper return channel 22 , the first lower vent door 26 to open the first lower vent channel 23 , the second upper vent door 35 to open the second upper return channel 32 , the second lower vent door 36 to open the second lower return channel 34 , and the first return door 15 and the second return door 16 to open.
- the condition that desires enhancement of return of the interior air may be the case when it is desired to quickly heat the interior or it is desired to secure air-conditioning efficiency for the first seat H 1 rather than the second seat H 2 .
- the controller 100 opens the internal/external air door 14 to introduce external air and controls the temperature adjustment door T so that the conditioned-air blown by the blower 11 passes through the heater unit 12 .
- the controller 100 controls the first upper vent door 25 to close the first upper vent channel 21 and open the first upper return channel 22 , the first lower vent door 26 to open the first lower vent channel 23 and close the first lower return channel 24 , and the first return door 15 to open. Further, the controller 100 controls the second upper vent door 35 to open the second upper return channel 32 and close the second upper vent channel 31 and the second lower vent door 36 to open the second lower return channel 34 and close the second lower vent channel 33 .
- cooling air is discharged toward the lower portion of the first seat H 1 (through the first lower vent hole A 2 ) and the interior air is returned from the upper portion of the first seat H 1 (through the first upper vent hole A 1 ), so the conditioned-air circulates only around the first seat H 1 . Further, the interior air is returned from the upper portion of the second seat H 2 (through the second upper vent hole A 3 ) and the lower portion of the second seat H 2 (through the second lower vent hole A 4 ), whereby the return ratio of the interior air is improved.
- the controller 100 controls the temperature adjustment door T such that the conditioned-air passes through the heater unit 12 , and can control the first upper vent door 25 to open the first upper return channel 22 , the first lower vent door 26 to open the first lower vent channel 23 , the second upper vent door 35 to open the second upper return channel 32 , the second lower vent door 36 to open the second lower vent channel 33 , and the first return door 15 and the second return door 16 to open.
- the controller 100 opens the internal/external air door 14 to introduce external air and controls the temperature adjustment door T so that the conditioned-air blown by the blower 11 passes through the heater unit 12 .
- the controller 100 controls the first upper vent door 25 to close the first upper vent channel 21 and open the first upper return channel 22 , the first lower vent door 26 to open the first lower vent channel 23 and close the first lower return channel 24 , and the first return door 15 to open. Further, the controller 100 controls the second upper vent door 35 to close the second upper vent channel 31 and open the second upper return channel 32 , the second lower vent door 36 to open the second lower vent channel 33 and close the second lower return channel 34 , and the second return door 16 to open.
- cooling air is discharged toward the upper portion of the first seat H 1 (through the first lower vent hole A 2 ) and toward the upper portion of the second seat H 2 (through the second lower vent hole A 4 ), while the interior air is returned from the upper portion of the first seat H 1 (through the first upper vent hole A 1 ) and from the upper portion of the second seat H 2 (through the second upper vent hole A 3 ), whereby both of the first seat H 1 and the second seat H 2 can be heated by circulation of the conditioned-air.
- heating air is discharged from the upper and lower portions of the dash board and some of the air is returned through the center portion of the dash board, so the heating air can smoothly circulate.
- the controller 100 controls the temperature adjustment door T such that conditioned-air passes through the cooling unit 13 and the heater unit 12 , and can control the internal/external door 14 to open, the first upper vent door 25 to open the first upper vent channel 21 , the first lower vent door 26 to open the first lower vent channel 23 , and the first return door 15 to open.
- the temperature adjustment mode discharges both of cooling air and heating air, in which the position of the temperature adjustment door T is adjusted in accordance with the desired interior temperature so that the temperature of the conditioned-air passing through the cooling unit 13 and the heater unit 12 .
- the controller 100 opens the internal/external air door 14 to introduce external air and controls the temperature adjustment door T so that the temperature of the conditioned-air blown by the blower 11 is adjusted through the heater unit 12 and the cooling unit 13 .
- the controller 100 controls the first upper vent door 25 to open the first upper vent channel 21 and close the first upper return channel 22 , and the first lower vent door 26 to open the first lower vent channel 23 and close the first lower return channel 24 . Further, the controller 100 controls the second upper vent door 35 to close the second upper vent channel 31 , the second lower vent door 36 to close the second lower vent channel 33 , and the second return door 16 to close.
- the controller 100 controls the defrost door 19 to open the defrost return channel 18 and close the defrost channel 17 , whereby the interior air can be returned through the defrost vent hole A 5 . That is, when the operation mode is the temperature adjustment mode of the interior air, both of the first upper vent channel 21 and the first lower vent channel 23 are opened such that conditioned-air is discharged, and the defrost return channel 18 is opened such that the interior air is returned through the defrost return channel 18 , whereby the conditioned-air circulates.
- conditioned-air is discharged toward the upper portion of the first seat H 1 (through the first upper vent hole A 1 ) and the lower portion of the first seat H 1 (through the first lower vent hole A 2 ), and the interior air is returned from the defrost vent hole A 5 , so the conditioned-air can circulate only around the first seat H 1 .
- the controller 100 controls the temperature adjustment door T such that conditioned-air passes through the cooling unit 13 and the heater unit 12 , and can control the internal/external door 14 to open, the first upper vent door 25 to open the first upper vent channel 21 , the first lower vent door 26 to open the first lower vent channel 23 , the second upper vent door 35 to open the second upper vent channel 31 , the second lower vent door 36 to open the second lower vent channel 33 , and the first return door 15 and the second door 16 to open.
- the controller 100 opens the internal/external air door 14 to introduce external air and controls the temperature adjustment door T so that the temperature of the conditioned-air blown by the blower 11 is adjusted through the heater unit 12 and the cooling unit 13 .
- the controller 100 controls the first upper vent door 25 to open the first upper vent channel 21 and close the first upper return channel 22 , and the first lower vent door 26 to open the first lower vent channel 23 and close the first lower return channel 24 . Further, the controller 100 controls the second upper vent door 35 to open the second upper vent channel 31 and close the second upper return channel 32 and the second lower vent door 36 to open the second lower vent channel 33 and close the second lower return channel 34 . Further, when the operation mode is the temperature adjustment mode of the interior air, the controller 100 controls the defrost door 19 to open the defrost return channel 18 and close the defrost channel 17 , whereby the interior air is returned through the defrost return channel 18 .
- conditioned-air is discharged toward the upper portion of the first seat H 1 (through the first upper vent hole A 1 ), the lower portion of the first seat H 1 (through the first lower vent hole A 2 ), the upper portion of the second seat H 2 (through the second upper vent hole A 3 ), and the lower portion of the second seat H 2 (through the second lower vent hole A 4 ), and the interior air is returned through the defrost vent hole A 5 , whereby the conditioned-air can circulate around the first seat H 1 and the second seat H 2 .
- the present disclosure it is possible to provide conditioned-air to passengers in accordance with situations of cooling, heating, and temperature adjusting, and individually providing conditioned-air to seats, depending on whether there are passengers, so a waste of energy for cooling and heating is prevented and the air-conditioning efficiency is increased. As the air-conditioning efficiency is increased, the range of an electric vehicle increases.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims (19)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020190111689A KR20210030553A (en) | 2019-09-09 | 2019-09-09 | Hvac system of vehicle |
KR10-2019-0111689 | 2019-09-09 |
Publications (2)
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US20210070132A1 US20210070132A1 (en) | 2021-03-11 |
US11718145B2 true US11718145B2 (en) | 2023-08-08 |
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US16/745,036 Active 2040-07-01 US11718145B2 (en) | 2019-09-09 | 2020-01-16 | HVAC system having air-conditioning channels for target seats |
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US (1) | US11718145B2 (en) |
KR (1) | KR20210030553A (en) |
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KR20220056920A (en) * | 2020-10-28 | 2022-05-09 | 현대자동차주식회사 | Air conditioner device for electric motor vehicle and air conditioner system for electric motor vehicle using the same |
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